Update US holidays: American Samoa holidays #4821

Job	Run time
Run pre-commit	1m 27s
CodeQL	2m 7s
Test Python 3.8 on macos-latest	1m 4s
Test Python 3.9 on macos-latest	1m 5s
Test Python 3.10 on macos-latest	53s
Test Python 3.11 on macos-latest	50s
Test Python 3.12 on macos-latest	55s
Test Python 3.13 on macos-latest	55s
Test Python 3.8 on ubuntu-latest	54s
Test Python 3.9 on ubuntu-latest	55s
Test Python 3.10 on ubuntu-latest	57s
Test Python 3.11 on ubuntu-latest	52s
Test Python 3.12 on ubuntu-latest	1m 26s
Test Python 3.13 on ubuntu-latest	1m 11s
Test Python 3.8 on windows-latest	1m 51s
Test Python 3.9 on windows-latest	1m 34s
Test Python 3.10 on windows-latest	2m 4s
Test Python 3.11 on windows-latest	1m 43s
Test Python 3.12 on windows-latest	2m 3s
Test Python 3.13 on windows-latest	2m 17s
Build distribution	19s
Test docs build	43s
Test build on macos-latest	39s
Test build on ubuntu-latest	51s
Test build on windows-latest	1m 58s
Publish generated artifacts	0s
	31m 33s

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